Speaker



FIG. 1 is a front right perspective view of the speaker of the present invention; FIG. 2 is a top plan view of the speaker of FIG. 1; FIG. 3 is a rear elevational view of the speaker of FIG. 1; FIG. 4 is a left side elevational view of the speaker of FIG. 1, the right side elevational view being a mirror image thereof; FIG. 5 is a front elevational view of the speaker of FIG. 1; and, FIG. 6 is a bottom plan view of the speaker of FIG. 1. The broken line showing on FIGS. 1-3 and 5 is for illustrative purposes only, and forms no part of the claimed design. 

The ornamental design for a speaker, as shown and described. 